I am not a good judge as I have larger palms and long fingers. I love the way a Glock fits. I got a Glock 19 with changeable back straps for DH. Turns out, it is my gun. I tried the Glock 26 today with the mag extension and I am soooooo getting one! I loved it.
I tried a single stack Springfield today ( don't remember which one) and it felt skinny in my palm. I wasn't a fan. If your wife has smaller palms have her look at single stack Springfield's.
I don't expect everything handed to me. Just set it down anywhere.